What a 1099-OID Form Means and Who Receives One

A 1099-OID reports interest income from bonds and other debt instruments you bought at a discount

A 1099-OID is a tax form that reports "original issue discount" — the difference between what you paid for a bond or similar debt instrument and what you will receive when it matures. The IRS treats this difference as interest income, even though you may not receive any cash until the bond matures. If you own bonds, Treasury securities, or certain other investments that were issued at a discount, you will receive a 1099-OID from the issuer or your broker.

The form arrives by January 31 each year and reports the discount income you owed tax on during that calendar year. You report this income on your tax return even if you have not yet cashed in the bond. This is different from a regular interest payment — you are being taxed on income you have not yet received in cash.

Key Takeaways

• A 1099-OID reports the discount portion of bonds or debt instruments you own, treated as taxable interest income even if you have not received the cash yet.
• The form shows how much of the discount accrued during the tax year, and you must report this amount on your return regardless of whether you sold or held the bond.
• Original issue discount applies to bonds issued after 1954 that were sold below their face value, including Treasury bills, corporate bonds, and zero-coupon bonds.
• You report 1099-OID income on Schedule B (Interest and Ordinary Dividends) or Schedule 1 (Other Income), depending on the amount and type of income you have.

How original issue discount works

When a bond is first issued, it may be sold for less than its face value — the amount you will receive at maturity. For example, a bond with a $1,000 face value might be issued and sold for $900. That $100 difference is the original issue discount. The IRS requires you to report a portion of this discount as taxable income each year you own the bond, even though you do not receive the money until maturity.

The amount you report each year depends on how much of the discount accrued during that tax year. The issuer or your broker calculates this using a specific method called the constant yield method. The longer you hold the bond, the more of the discount you report as income. This rule applies to most bonds issued after 1954, including Treasury bills, corporate bonds, municipal bonds (if taxable), and zero-coupon bonds.

Zero-coupon bonds are the most common type to generate a 1099-OID. These bonds pay no interest during their life — you buy them at a deep discount and receive the full face value at maturity. The entire difference between your purchase price and face value is treated as accrued interest income.

What appears on the 1099-OID form

The 1099-OID has several boxes that report different pieces of information. Box 1 shows the original issue discount that accrued during the tax year — this is the number you report on your tax return. Box 2 shows the original issue discount for the entire life of the bond (from issuance to maturity), which helps you understand the full picture. Box 3 reports any other periodic interest paid on the bond during the year, if applicable.

Boxes 4 through 6 contain information about the bond itself: the issue date, maturity date, and the percentage of the original issue discount. Your broker or the bond issuer fills in these boxes. The form also includes your name, address, and tax identification number, as well as the issuer's information. You should receive a copy for your records and a copy goes to the IRS.

Where to report 1099-OID income on your return

You report the amount from Box 1 of the 1099-OID as interest income on your tax return. If you have less than $1,500 in interest and ordinary dividend income combined, you may be able to report it directly on Form 1040, line 1b. If you have $1,500 or more, you must use Schedule B (Interest and Ordinary Dividends) and attach it to your return.

On Schedule B, you list each 1099-OID you received, the amount from Box 1, and add them together. The total goes on line 1b of Form 1040. If you received a 1099-OID but did not receive any cash from the bond during the year, you still report the accrued discount income — this is a common source of confusion for bond owners.

Common situations that generate a 1099-OID

Treasury bills (T-bills) are short-term government debt sold at a discount and are one of the most common sources of 1099-OID forms. You might buy a $10,000 T-bill for $9,950 and receive $10,000 at maturity in a few months. The $50 difference is reported on a 1099-OID.

Corporate bonds issued at a discount also generate a 1099-OID. If a company issues a bond with a face value of $1,000 but sells it for $950 due to market conditions, the $50 discount is reported annually. Zero-coupon bonds, which are specifically designed to be sold at a steep discount, generate a 1099-OID for the entire accrued discount each year — sometimes a large amount even though you receive no cash payments.

If you buy a bond on the secondary market (from another investor rather than directly from the issuer) at a discount, you may receive a 1099-OID for the market discount portion, though the rules differ slightly from original issue discount. Ask your broker which form applies to your purchase.

What to do if you receive a 1099-OID you do not expect

If you receive a 1099-OID but do not remember owning a bond that would generate one, check with your broker or financial institution. The form may relate to a bond held in a retirement account, an inherited bond, or a bond purchased through a mutual fund or bond fund. Sometimes a 1099-OID arrives for a bond you sold during the year — you still report the accrued discount for the portion of the year you owned it.

If you believe the form is incorrect — for example, the amount in Box 1 seems too high or you do not recognize the bond — contact the issuer or your broker when ready. They can issue a corrected form (a 1099-OID with a "CORRECTED" label) before the filing important date. Do not ignore a 1099-OID; the IRS receives a copy and will expect to see the income reported on your return.

How original issue discount differs from market discount

Original issue discount applies only to bonds issued at a discount by the original issuer. Market discount is different — it occurs when you buy a bond on the secondary market for less than its face value, usually because interest rates have risen since the bond was issued. Market discount is reported on Form 8949 (Sales of Capital Assets) rather than a 1099-OID, and the tax treatment is different.

If you own a bond with both original issue discount and market discount, you may receive both a 1099-OID and need to report market discount separately. Your broker can help you understand which applies to your specific bond. The key difference is timing: original issue discount is reported as interest income each year, while market discount is typically reported as a capital gain when you sell the bond.

Frequently Asked Questions

Do I have to report 1099-OID income if I did not sell the bond?

Yes. The IRS requires you to report the accrued original issue discount as income each year you own the bond, regardless of whether you sold it or held it to maturity. This is one of the most common mistakes — people assume they only owe tax when they receive cash, but the discount is taxable as it accrues.

What if my 1099-OID amount seems wrong?

Contact your broker or the bond issuer right away. They can verify the calculation and issue a corrected form if needed. The amount is calculated using the constant yield method, which can be complex, so errors do happen. Do not file your return until you have confirmed the amount is correct.

Can I deduct losses on a bond with original issue discount?

If you sell a bond for less than you paid for it, you may have a capital loss. However, you still must report the accrued original issue discount as income for the years you owned it. The loss and the income are reported separately on your return.

Do I report 1099-OID income if the bond is in a retirement account?

No. If the bond is in a traditional IRA, Roth IRA, 401(k), or other may have access to retirement account, you do not receive a 1099-OID and do not report the income on your tax return. The account custodian handles the tax treatment internally.

What is a zero-coupon bond and why does it generate a large 1099-OID?

A zero-coupon bond pays no interest during its life — you buy it at a steep discount and receive the full face value at maturity. The entire difference is treated as accrued interest income and reported on the 1099-OID. For example, a $10,000 zero-coupon bond bought for $6,000 might report $400 to $600 in accrued discount each year, even though you receive no cash until maturity.